This was all Just North of London, couldn't have gone past 12 Mile road
Nice chase in late June on a tornado watched cell resulted in seeing my first spinups under a storm though very weak, and storm was huge. when I arrived I could see a huge flank to the west and a RFB rotating with a lowering on the western edge of the rotation anf the front flank ahead of it on the eastern side with the typical rising and falling motions ina good storm under the base ahead of that core.
west flank
Here was the eastern side

this was something i forgot to mention, this was a circular rotating rain curtain centered in the base,
tornado watches were out around now I believe, and there was a lowering forming in the center

nice rotating lowering in the center of a rotating rain curtain

Then I felt pretty confident it had zero chance of coming down, I decided to go under it for a shot

Now the storm really began to kick in even though this lowereing eventualy fell apart
this lowering had some strong rotation and left but lost intensity after 5 minutes

I then for some reason decided to go through the core to the north side , I don't really know why but it paid off. I'm still in the edge of the core on this shot but to my right a lowering is causing a merrygo round of condensation spinups on the ground, every once in a while one that would pass by the right side of the rotation would jolt up and connect with the base. The contrast was horrible and the camera terrible, but it's there

Here is a contrast blast

After this stopped the whole storm just fell apart , although It was going into London from the North and that seems to kill some storms.